Bleeding disorders
Coagulopathy
Bleeding disorders are a group of conditions in which there is a problem with the body's blood clotting process. These disorders can lead to heavy and prolonged bleeding after an injury. Bleeding can also begin on its own.
Specific bleeding disorders include:
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Acquired platelet function defects
Acquired platelet function defects
Acquired platelet function defects are conditions that prevent clotting elements in the blood called platelets from working as they should. The term...
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Congenital platelet function defects
Congenital platelet function defects
Congenital platelet function defects are problems with one of the blood elements needed for clots to form normally. These cells are called platelets...
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Congenital protein C or S deficiency
Congenital protein C or S deficiency
Congenital protein C or S deficiency is a lack of proteins C or S in the fluid part of the blood. The proteins are natural substances that help prev...
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Disseminated intravascular coagulation (DIC)
Disseminated intravascular coagulation ...
Disseminated intravascular coagulation is a serious disorder in which the proteins that control blood clotting become overactive.
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Factor II deficiency
Factor II deficiency
Factor II (two) deficiency is a disorder caused by a lack of a protein called factor II in the blood. It leads to problems with blood clotting (coag...
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Factor V deficiency
Factor V deficiency
Factor V deficiency is a condition that is passed down through families, which affects the ability of the blood to clot.
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Factor VII deficiency
Factor VII deficiency
Factor VII (seven) deficiency is a disorder caused by a lack of a protein called factor VII in the blood. It leads to problems with blood clotting (...
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Factor X deficiency
Factor X deficiency
Factor X (ten) deficiency is a disorder caused by a lack of a protein called factor X in the blood. It leads to problems with blood clotting (coagul...
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Factor XII deficiency
Factor XII deficiency
Factor XII deficiency is an inherited disorder that affects a protein (factor XII) involved in blood clotting.
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Glanzmann disease
Glanzmann disease
Glanzmann disease is a rare disorder of blood platelets, which results in easy bruising and nosebleeds.
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Hemophilia A
Hemophilia A
Hemophilia A is a hereditary bleeding disorder caused by a lack of blood clotting factor VIII. Without enough factor VIII, the blood cannot clot pro...
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Hemophilia B
Hemophilia B
Hemophilia B is a hereditary bleeding disorder caused by a lack of blood clotting factor IX. Without enough factor IX, the blood cannot clot properl...
- Hemophilia C (Factor XI deficiency)
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Idiopathic thrombocytopenic purpura (ITP)
Idiopathic thrombocytopenic purpura (IT...
Idiopathic thrombocytopenic purpura (ITP) is a bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood ...
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Von Willebrand's disease
(types I, II, and III)
Von Willebrand's disease
Von Willebrand disease is the most common hereditary bleeding disorder.
Causes
Normal blood clotting involves blood components called platelets and as many as 20 different plasma proteins. These are known as blood clotting or coagulation factors. These factors interact with other chemicals to form a substance called fibrin that stops bleeding.
Problems can occur when certain factors are low or missing. Bleeding problems can range from mild to severe.
Some bleeding disorders are present at birth and are passed through families (inherited). Others develop from:
- Illnesses such as vitamin K deficiency or severe liver disease
- Treatments such as the use of drugs to stop blood clots (anticoagulants) or the long-term use of antibiotics
Bleeding disorders can also result from a problem with the number or function of the blood cells that promote blood clotting (platelets). These disorders can also be either inherited or develop later (acquired). The side effects of certain drugs often lead to the acquired forms.
Symptoms
Symptoms may include any of the following:
- Bleeding into joints or muscles
- Bruising easily
- Heavy bleeding
- Heavy menstrual bleeding
- Nosebleeds that do not stop easily
- Excessive bleeding with surgical procedures
- Umbilical cord bleeding after birth
The type of problems that occur depend on the specific bleeding disorder, and how severe it is.
Exams and Tests
Tests that may be done include:
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Complete blood count (
CBC
)
CBC
A complete blood count (CBC) test measures the following:The number of red blood cells (RBC count)The number of white blood cells (WBC count)The tota...
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Bleeding time
Bleeding time
Bleeding time is a medical test that measures how fast small blood vessels in the skin stop bleeding.
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Partial thromboplastin time (
PTT
)
PTT
Partial thromboplastin time (PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if you have a bleeding problem...
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Platelet aggregation test
Platelet aggregation test
The platelet aggregation blood test checks how well platelets, a part of blood, clump together and cause blood to clot.
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Prothrombin time (
PT
)
PT
Prothrombin time (PT) is a blood test that measures the time it takes for the liquid portion (plasma) of your blood to clot. A related blood test is ...
Treatment
Treatment depends on the type of disorder. It may include:
- Clotting factor replacement
- Fresh frozen plasma transfusion
- Platelet transfusion
- Other treatments
Outlook (Prognosis)
Outcome also depends on the disorder. Most primary bleeding disorders can be managed. When the disorders is due to diseases, such as DIC, the outcome will depend on how well the underlying disease can be treated.
Possible Complications
Complications may include:
- Bleeding in the brain
- Severe bleeding (usually from the gastrointestinal tract or injuries)
Other complications can occur, depending on the disorder.
When to Contact a Medical Professional
Call your health care provider if you notice any unusual or severe bleeding.
Prevention
Prevention depends on the specific disorder.
References
Gailani D, Neff AT. Rare coagulation deficiencies. In: Hoffman R, Benz EJ Jr, Silberstein LE, Heslop HE, Weitz JI, Anastasi JI, eds. Hematology: Basic Principles and Practice . 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 139.
Jobe S, Di Paola J. Congenital and acquired disorders of platelet function. In: Kitchens CS, Kessler CM, Konkle BA, eds. Consultative Hemostasis and Thrombosis . 3rd ed. Philadelphia, PA: Elsevier Saunders: chap 10.
Ragni MV. Hemorrhagic disorders: Coagulation factor deficiencies. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine . 24th ed. Philadelphia, PA: Saunders Elsevier; 2012:chap 177.
Review Date: 1/27/2015
Reviewed By: Yi-Bin Chen, MD, leukemia/bone marrow transplant program, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.